CN202606507U - Automatic controlling and adjusting device for cross angle of rolls of rolling mill - Google Patents
Automatic controlling and adjusting device for cross angle of rolls of rolling mill Download PDFInfo
- Publication number
- CN202606507U CN202606507U CN 201220293431 CN201220293431U CN202606507U CN 202606507 U CN202606507 U CN 202606507U CN 201220293431 CN201220293431 CN 201220293431 CN 201220293431 U CN201220293431 U CN 201220293431U CN 202606507 U CN202606507 U CN 202606507U
- Authority
- CN
- China
- Prior art keywords
- oil cylinder
- hydraulic oil
- servo
- roll
- working roll
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Control Of Metal Rolling (AREA)
Abstract
The utility model discloses an automatic controlling and adjusting device for a cross angle of rolls of a rolling mill; the automatic controlling and adjusting device comprises an upper supporting roll, an upper working roll, a lower working roll and a lower supporting roll; at an operation side inlet, the automatic controlling and adjusting device comprises an upper supporting roll, an upper working roll, a lower working roll and a lower supporting roll servo hydraulic oil cylinder; at an operation side outlet, the automatic controlling and adjusting device comprises an upper supporting roll, an upper working roll, a lower working roll and a lower supporting roll servo hydraulic oil cylinder; at a transmission side outlet, the automatic controlling and adjusting device comprises an upper supporting roll, an upper working roll, a lower working roll and a lower supporting roll servo hydraulic oil cylinder; and at a transmission side inlet, the automatic controlling and adjusting device comprises an upper supporting roll, an upper working roll, a lower working roll and a lower supporting roll servo hydraulic oil cylinder; the automatic controlling and adjusting device further comprises an automatic adjusting device; and detecting elements are arranged on the automatic adjusting device and a piston in each servo hydraulic oil cylinder. Through the adoption of the automatic controlling and adjusting device disclosed by the utility model, the angle between the crossed rolls is detected online and automatically adjusted, so that difference between a set crossing angle of the rolls of the rolling mill and an actual crossing angle of the rolls of the rolling mill is guaranteed, the braking degree of the rolling mill is enhanced, the rolling mill is prevented from being stopped for adjustment, the production rate is increased, the labor intensity of a worker is reduced, and product quality in production is guaranteed.
Description
Technical field
The utility model relates to a kind of the rolling mill roll angle of the crossing adjusting device, particularly milling train a kind of rolling mill roll angle of the crossing in the operation of rolling and controls adjusting device automatically.
Background technology
Present rolling mill roll angle of the crossing adjusting device, it comprises mainly on the fore side that backing roll stablize oil cylinder, fore side top working roll and stablize oil cylinder, fore side bottom working roll and stablize under oil cylinder, the fore side backing roll and stablize on oil cylinder, the fore side backing roll and adjusts arc-shaped pad, fore side top working roll and adjust on arc-shaped pad, fore side cross head, fore side compensating cylinder, the electronic worm and gear moving positioning device of fore side cross head, the transmission side backing roll and stablize oil cylinder, transmission side top working roll and stablize oil cylinder, transmission side bottom working roll and stablize under oil cylinder, the transmission side backing roll and stablize that backing roll is adjusted arc-shaped pad under oil cylinder, the transmission side, the transmission side bottom working roll is adjusted arc-shaped pad, transmission side cross head, transmission side compensating cylinder, the electronic worm and gear moving positioning device of transmission side cross head.Each adjusting pad needs artificial adjustment, measures during use; The electronic worm and gear moving positioning device of fore side cross head, the electronic worm and gear moving positioning device of transmission side cross head move to certain position and impel last backing roll, top working roll to become certain intersecting angle with bottom working roll, following backing roll, reach the predetermined angle of the crossing through artificial repeated measurement, check.This kind method adjustment rolling mill roll angle of the crossing is time-consuming, effort, precision is low, the manual measurement error is big.Only limit in addition when milling train stops production and to adjust, be unfavorable for the control of product quality of producing and improve the rate of giving birth to.
The utility model content
The purpose of the utility model is, provides a kind of rolling mill roll angle of the crossing to control adjusting device automatically, can carry out online detection to intersection roller angle; Automatically adjustment guarantees that the rolling mill roll angle of the crossing of setting is identical with the actual rolling mill roll angle of the crossing, improves the milling train automaticity; Avoid the adjustment that stops production; Boost productivity, reduce the labour intensity of workman's measurement and manual adjustment simultaneously, and guarantee the product quality of production.
The technical scheme of the utility model: a kind of rolling mill roll angle of the crossing is controlled adjusting device automatically; Comprise top working roll and the bottom working roll of symmetric support on milling train; The top working roll top is provided with backing roll; The bottom working roll below is provided with down backing roll, and the both sides of last backing roll, top working roll, bottom working roll and following backing roll are provided with the oil cylinder automatic regulating system.Owing to be provided with the oil cylinder automatic regulating system; Can adjust automatically intersection roller angle, guarantee that the rolling mill roll angle of the crossing of setting is identical with the actual rolling mill roll angle of the crossing, improve the milling train automaticity; Avoid the adjustment that stops production; Boost productivity, reduce the labour intensity of workman's measurement and manual adjustment simultaneously, and guarantee the product quality of production.
The aforesaid this rolling mill roll angle of the crossing is controlled in the adjusting device automatically; The oil cylinder automatic regulating system comprises and fore side inlet goes up backing roll servo-hydraulic oil cylinder, fore side inlet top working roll servo-hydraulic oil cylinder, fore side inlet bottom working roll servo-hydraulic oil cylinder, fore side inlet backing roll servo-hydraulic oil cylinder, fore side outlet are gone up backing roll servo-hydraulic oil cylinder, fore side outlet top working roll servo-hydraulic oil cylinder, fore side outlet bottom working roll servo-hydraulic oil cylinder, fore side outlet backing roll servo-hydraulic oil cylinder, transmission side outlet are gone up backing roll servo-hydraulic oil cylinder, transmission side outlet top working roll servo-hydraulic oil cylinder, transmission side outlet bottom working roll servo-hydraulic oil cylinder, transmission side outlet backing roll servo-hydraulic oil cylinder, transmission side inlet are gone up backing roll servo-hydraulic oil cylinder, transmission side inlet top working roll servo-hydraulic oil cylinder, transmission side inlet bottom working roll servo-hydraulic oil cylinder and transmission side inlet backing roll servo-hydraulic oil cylinder down down down down; The fore side inlet goes up backing roll servo-hydraulic oil cylinder and the both sides that backing roll servo-hydraulic oil cylinder is located at the backing roll operating side are gone up in the fore side outlet; Backing roll servo-hydraulic oil cylinder is gone up in the transmission side outlet and the transmission side inlet is gone up the both sides that backing roll servo-hydraulic oil cylinder is located at the backing roll driving end; Fore side inlet top working roll servo-hydraulic oil cylinder and fore side outlet top working roll servo-hydraulic oil cylinder are located at the both sides of top working roll operating side; Transmission side outlet top working roll servo-hydraulic oil cylinder and transmission side inlet top working roll servo-hydraulic oil cylinder are located at the both sides of top working roll driving end; Fore side inlet bottom working roll servo-hydraulic oil cylinder and fore side outlet bottom working roll servo-hydraulic oil cylinder are located at the both sides of bottom working roll operating side; Transmission side outlet bottom working roll servo-hydraulic oil cylinder and transmission side inlet bottom working roll servo-hydraulic oil cylinder are located at the both sides of bottom working roll driving end; Backing roll servo-hydraulic oil cylinder was located at down the both sides of backing roll operating side under backing roll servo-hydraulic oil cylinder and fore side exported under fore side entered the mouth, and backing roll servo-hydraulic oil cylinder was located at down the both sides of backing roll driving end under backing roll servo-hydraulic oil cylinder and transmission side entered the mouth under the transmission side outlet.
The aforesaid this rolling mill roll angle of the crossing is controlled in the adjusting device automatically, is equipped with detecting element on the in-oil cylinder piston of all servo-hydraulics in the said oil cylinder automatic regulating system.Owing to be provided with detecting element, can detect intersection roller angle at any time.
The aforesaid this rolling mill roll angle of the crossing is controlled in the adjusting device automatically, and the oil cylinder automatic regulating system adopts electrohydraulic servo system.
The aforesaid this rolling mill roll angle of the crossing is controlled in the adjusting device automatically, is provided with the PDI controller in the electrohydraulic servo system.Owing to be provided with the PDI controller, can realize that the full-automation of the rolling mill roll angle of the crossing is regulated.
The aforesaid this rolling mill roll angle of the crossing is controlled in the adjusting device automatically, and the detecting element and the piston outside are provided with hydraulic cylinder and hydraulic cylinder.
The aforesaid this rolling mill roll angle of the crossing is controlled in the adjusting device automatically, and detecting element is a displacement transducer.Owing to be provided with displacement transducer, can measure moving of piston in hydraulic cylinder accurately, more accurate angle is regulated.
Compared with prior art, because the utility model is provided with automatic regulating apparatus, so can carry out online detection to intersection roller angle in the work; Automatically adjustment guarantees that the rolling mill roll angle of the crossing of setting is identical with the actual rolling mill roll angle of the crossing, improves the milling train automaticity; Avoid the adjustment that stops production; Boost productivity, reduce the labour intensity of workman's measurement and manual adjustment simultaneously, and guarantee the product quality of production; Because the utility model is provided with the PDI controller, regulate so can realize the full-automation of the rolling mill roll angle of the crossing; Because the utility model is provided with displacement transducer, so can measure moving of piston in hydraulic cylinder accurately, more accurate angle is regulated.
Description of drawings
Fig. 1 is the structural representation of the utility model milling train fore side;
Fig. 2 is the structural representation of the utility model milling train transmission side;
Fig. 3 is the structural representation of the utility model servo-cylinder;
Fig. 4 is the operation principle sketch map of the utility model.
The last backing roll of being labeled as in the accompanying drawing: 1-, 2-fore side inlet is gone up backing roll servo-hydraulic oil cylinder, 3-top working roll; 4-fore side inlet top working roll servo-hydraulic oil cylinder, 5-fore side inlet bottom working roll servo-hydraulic oil cylinder, 6-bottom working roll; Backing roll under the 7-, 8-fore side inlet is backing roll servo-hydraulic oil cylinder down, and backing roll servo-hydraulic oil cylinder is gone up in the outlet of 9-fore side; 10-fore side outlet top working roll servo-hydraulic oil cylinder, 11-fore side outlet bottom working roll servo-hydraulic oil cylinder, the outlet of 12-fore side is backing roll servo-hydraulic oil cylinder down; The 13-detecting element, backing roll servo-hydraulic oil cylinder is gone up in the outlet of 14-transmission side, 15-transmission side outlet top working roll servo-hydraulic oil cylinder; 16-transmission side outlet bottom working roll servo-hydraulic oil cylinder, the outlet of 17-transmission side is backing roll servo-hydraulic oil cylinder down, and 18-transmission side inlet is gone up backing roll servo-hydraulic oil cylinder; 19-transmission side inlet top working roll servo-hydraulic oil cylinder, 20-transmission side inlet bottom working roll servo-hydraulic oil cylinder, 21-transmission side inlet is backing roll servo-hydraulic oil cylinder down; The 22-piston, 23-hydraulic cylinder, 24-hydraulic cylinder.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further described, but not as the foundation to the utility model restriction.
The embodiment of the utility model: as depicted in figs. 1 and 2; A kind of rolling mill roll angle of the crossing is controlled adjusting device automatically; Comprise the top working roll 3 and bottom working roll 6 of symmetric support on milling train; Top working roll 3 tops are provided with backing roll 1, and bottom working roll 6 belows are provided with down backing roll 7, and the both sides of last backing roll 1, top working roll 3, bottom working roll 6 and following backing roll 7 are provided with the oil cylinder automatic regulating system.
The oil cylinder automatic regulating system comprises and fore side inlet goes up backing roll servo-hydraulic oil cylinder 2, fore side inlet top working roll servo-hydraulic oil cylinder 4, fore side inlet bottom working roll servo-hydraulic oil cylinder 5, fore side inlet backing roll servo-hydraulic oil cylinder 8, fore side outlet are gone up backing roll servo-hydraulic oil cylinder 9, fore side outlet top working roll servo-hydraulic oil cylinder 10, fore side outlet bottom working roll servo-hydraulic oil cylinder 11, fore side outlet backing roll servo-hydraulic oil cylinder 12, transmission side outlet are gone up backing roll servo-hydraulic oil cylinder 14, transmission side outlet top working roll servo-hydraulic oil cylinder 15, transmission side outlet bottom working roll servo-hydraulic oil cylinder 16, transmission side outlet backing roll servo-hydraulic oil cylinder 17, transmission side inlet are gone up backing roll servo-hydraulic oil cylinder 18, transmission side inlet top working roll servo-hydraulic oil cylinder 19, transmission side inlet bottom working roll servo-hydraulic oil cylinder 20 and transmission side inlet backing roll servo-hydraulic oil cylinder 21 down down down down; The fore side inlet is gone up backing roll servo-hydraulic oil cylinder 2 and is gone up the both sides that backing roll servo-hydraulic oil cylinder 9 is located at backing roll 1 operating side with the fore side outlet; The transmission side outlet is gone up backing roll servo-hydraulic oil cylinder 14 and is gone up the both sides that backing roll servo-hydraulic oil cylinder 18 is located at backing roll 1 driving end with the transmission side inlet; Fore side inlet top working roll servo-hydraulic oil cylinder 4 exports the both sides that top working roll servo-hydraulic oil cylinder 10 is located at top working roll 3 operating sides with fore side; Transmission side outlet top working roll servo-hydraulic oil cylinder 15 and transmission side inlet top working roll servo-hydraulic oil cylinder 19 are located at the both sides of top working roll 3 driving ends; Fore side inlet bottom working roll servo-hydraulic oil cylinder 5 exports the both sides that bottom working roll servo-hydraulic oil cylinder 11 is located at bottom working roll 6 operating sides with fore side; Transmission side outlet bottom working roll servo-hydraulic oil cylinder 16 and transmission side inlet bottom working roll servo-hydraulic oil cylinder 20 are located at the both sides of bottom working roll 6 driving ends; Backing roll servo-hydraulic oil cylinder 12 was located at down the both sides of backing roll 7 operating sides under backing roll servo-hydraulic oil cylinder 8 exported with fore side under the fore side inlet, and backing roll servo-hydraulic oil cylinder 21 was located at down the both sides of backing roll 7 driving ends under backing roll servo-hydraulic oil cylinder 17 entered the mouth with transmission side under the transmission side outlet.
As shown in Figure 3, the in-oil cylinder piston 22 of all servo-hydraulics is provided with detecting element 13 in the said oil cylinder automatic regulating system; Detecting element 13 is provided with hydraulic cylinder 23 and hydraulic cylinder 24 with piston 22 outsides; Detecting element 13 is a displacement transducer.
As shown in Figure 4, the oil cylinder automatic regulating system adopts electrohydraulic servo system; Be provided with the PDI controller in the electrohydraulic servo system.
The operation principle of the utility model: make fore side outlet servo-hydraulic oil cylinder, transmission side outlet servo-hydraulic oil cylinder keep corresponding position to carry out Position Control by rolling mill roll intersecting angle value, the electro-hydraulic servo automatic control system set.Fore side inlet servo-hydraulic oil cylinder, transmission side inlet servo-hydraulic oil cylinder hold out against roll bearing box and keep oil pressure and position in the servo-hydraulic oil cylinder are controlled automatically, promptly realize the automatic control to the rolling mill roll angle of the crossing.
Claims (7)
1. a rolling mill roll angle of the crossing is controlled adjusting device automatically; Comprise top working roll (3) and the bottom working roll (6) of symmetric support on milling train; Top working roll (3) top is provided with backing roll (1); Bottom working roll (6) below is provided with down backing roll (7), it is characterized in that: the both sides of going up backing roll (1), top working roll (3), bottom working roll (6) and following backing roll (7) are provided with the oil cylinder automatic regulating system.
2. a kind of rolling mill roll angle of the crossing according to claim 1 is controlled adjusting device automatically; It is characterized in that: the oil cylinder automatic regulating system comprises and fore side inlet goes up backing roll servo-hydraulic oil cylinder (2), fore side inlet top working roll servo-hydraulic oil cylinder (4), fore side inlet bottom working roll servo-hydraulic oil cylinder (5), fore side inlet backing roll servo-hydraulic oil cylinder (8), fore side outlet are gone up backing roll servo-hydraulic oil cylinder (9), fore side outlet top working roll servo-hydraulic oil cylinder (10), fore side outlet bottom working roll servo-hydraulic oil cylinder (11), fore side outlet backing roll servo-hydraulic oil cylinder (12), transmission side outlet are gone up backing roll servo-hydraulic oil cylinder (14), transmission side outlet top working roll servo-hydraulic oil cylinder (15), transmission side outlet bottom working roll servo-hydraulic oil cylinder (16), transmission side outlet backing roll servo-hydraulic oil cylinder (17), transmission side inlet are gone up backing roll servo-hydraulic oil cylinder (21) under backing roll servo-hydraulic oil cylinder (18), transmission side inlet top working roll servo-hydraulic oil cylinder (19), transmission side inlet bottom working roll servo-hydraulic oil cylinder (20) and the transmission side inlet down down down; The fore side inlet is gone up backing roll servo-hydraulic oil cylinder (2) and is gone up the both sides that backing roll servo-hydraulic oil cylinder (9) is located at backing roll (1) operating side with the fore side outlet; The transmission side outlet is gone up backing roll servo-hydraulic oil cylinder (14) and is gone up the both sides that backing roll servo-hydraulic oil cylinder (18) is located at backing roll (1) driving end with the transmission side inlet; Fore side inlet top working roll servo-hydraulic oil cylinder (4) exports the both sides that top working roll servo-hydraulic oil cylinder (10) is located at top working roll (3) operating side with fore side; Transmission side outlet top working roll servo-hydraulic oil cylinder (15) and transmission side inlet top working roll servo-hydraulic oil cylinder (19) are located at the both sides of top working roll (3) driving end; Fore side inlet bottom working roll servo-hydraulic oil cylinder (5) exports the both sides that bottom working roll servo-hydraulic oil cylinder (11) is located at bottom working roll (6) operating side with fore side; Transmission side outlet bottom working roll servo-hydraulic oil cylinder (16) and transmission side inlet bottom working roll servo-hydraulic oil cylinder (20) are located at the both sides of bottom working roll (6) driving end; Backing roll servo-hydraulic oil cylinder (12) was located at down the both sides of backing roll (7) operating side under backing roll servo-hydraulic oil cylinder (8) exported with fore side under the fore side inlet, and backing roll servo-hydraulic oil cylinder (21) was located at down the both sides of backing roll (7) driving end under backing roll servo-hydraulic oil cylinder (17) entered the mouth with transmission side under the transmission side outlet.
3. a kind of rolling mill roll angle of the crossing according to claim 2 is controlled adjusting device automatically, it is characterized in that: the in-oil cylinder piston of all servo-hydraulics (22) is provided with detecting element (13) in the said oil cylinder automatic regulating system.
4. a kind of rolling mill roll angle of the crossing according to claim 2 is controlled adjusting device automatically, it is characterized in that: the oil cylinder automatic regulating system adopts electrohydraulic servo system.
5. a kind of rolling mill roll angle of the crossing according to claim 4 is controlled adjusting device automatically, it is characterized in that: be provided with the PDI controller in the electrohydraulic servo system.
6. a kind of rolling mill roll angle of the crossing according to claim 3 is controlled adjusting device automatically, it is characterized in that: detecting element (13) is provided with hydraulic cylinder (23) and hydraulic cylinder (24) with piston (22) outside.
7. control adjusting device automatically according to claim 3 or 6 described a kind of rolling mill roll angles of the crossing, it is characterized in that: detecting element (13) is a displacement transducer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220293431 CN202606507U (en) | 2012-06-18 | 2012-06-18 | Automatic controlling and adjusting device for cross angle of rolls of rolling mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220293431 CN202606507U (en) | 2012-06-18 | 2012-06-18 | Automatic controlling and adjusting device for cross angle of rolls of rolling mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202606507U true CN202606507U (en) | 2012-12-19 |
Family
ID=47340239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220293431 Expired - Fee Related CN202606507U (en) | 2012-06-18 | 2012-06-18 | Automatic controlling and adjusting device for cross angle of rolls of rolling mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202606507U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103143568A (en) * | 2013-02-27 | 2013-06-12 | 常州宝菱重工机械有限公司 | Roller on-line cross mechanism of PC (polycarbonate) rolling mill |
| CN107649518A (en) * | 2017-11-07 | 2018-02-02 | 扬州诚德重工有限公司 | A kind of horizontal four-roller barrier part milling train |
| CN108380672A (en) * | 2018-02-10 | 2018-08-10 | 太原理工大学 | A kind of self-reacting device of adjustment roll chock and rack gap |
| CN110382127A (en) * | 2017-03-07 | 2019-10-25 | 日本制铁株式会社 | Angle of the crossing recognition methods, angle of the crossing identification device and milling train |
| CN111659738A (en) * | 2020-06-10 | 2020-09-15 | 武汉钢铁有限公司 | Method and device for measuring cross degree of rolling mill roller system |
-
2012
- 2012-06-18 CN CN 201220293431 patent/CN202606507U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103143568A (en) * | 2013-02-27 | 2013-06-12 | 常州宝菱重工机械有限公司 | Roller on-line cross mechanism of PC (polycarbonate) rolling mill |
| CN110382127A (en) * | 2017-03-07 | 2019-10-25 | 日本制铁株式会社 | Angle of the crossing recognition methods, angle of the crossing identification device and milling train |
| US11192157B2 (en) | 2017-03-07 | 2021-12-07 | Nippon Steel Corporation | Cross angle identification method, cross angle identification device, and rolling mill |
| CN107649518A (en) * | 2017-11-07 | 2018-02-02 | 扬州诚德重工有限公司 | A kind of horizontal four-roller barrier part milling train |
| CN108380672A (en) * | 2018-02-10 | 2018-08-10 | 太原理工大学 | A kind of self-reacting device of adjustment roll chock and rack gap |
| CN108380672B (en) * | 2018-02-10 | 2019-07-26 | 太原理工大学 | A kind of self-reacting device adjusting roll chock and rack gap |
| CN111659738A (en) * | 2020-06-10 | 2020-09-15 | 武汉钢铁有限公司 | Method and device for measuring cross degree of rolling mill roller system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202606507U (en) | Automatic controlling and adjusting device for cross angle of rolls of rolling mill | |
| CN104128396B (en) | Workpiece straightener and aligning method thereof | |
| CN201529731U (en) | Novel electrohydraulic servo follow-up material carrier used for numerical control plate bender | |
| CN104209339A (en) | Method of using rough rolling inverse-pass vertical roll gap measurement for conducting plate blank width control | |
| CN201482801U (en) | Tension control device of dancer roll | |
| CN202240256U (en) | Centering mechanism of T profile welding production line | |
| CN102581037A (en) | Method for adjusting zero position of two sides of hot continuous rolling mill | |
| CN201389558Y (en) | Cam device | |
| EP2895656B1 (en) | Method and device for force-dependent controlling in the machining of rails | |
| CN110788165B (en) | Rapid calibration control system and control method for roll gap of seven-roll straightener | |
| CN106513443B (en) | A kind of four roll reversing rollers and its method for correcting error being equipped with band automatic centring device | |
| CN205341575U (en) | Full -automatic linear guide alignment equipment | |
| CN205927314U (en) | Full -automatic cutting machine | |
| CN205763046U (en) | A kind of strip steel back-flexing controls device | |
| CN202527338U (en) | Glue thickness control system of coating head | |
| CN203109476U (en) | Welding gun regulating device used for welding of vertical H-shaped steel | |
| CN206838803U (en) | A kind of sectional material straightening machine | |
| CN203228386U (en) | Die sinking positioning control system | |
| CN204449025U (en) | Hydraulic pressure moves bender | |
| CN108067508B (en) | The automatic hot rolling adhesive bonding method and equipment of composite ingot | |
| CN100402173C (en) | Combination system for servo-roll-separating and quick-backward of cross-roll straightening machine | |
| CN105855301A (en) | Device and method for measuring deviation of strip steel | |
| CN2930910Y (en) | Roll gap servo adjusting device for inclined roller straightening machine | |
| CN206382332U (en) | Four roll reversing rollers of band automatic centring device are installed | |
| CN203588082U (en) | System for automatically controlling thickness of waterproof coiled material |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121219 Termination date: 20160618 |